"Golden eye" of industrial automation

"Golden eye" of industrial automation

—Machine vision inspection helps the development of manufacturing industry

As we all know, machine vision inspection is to replace human eyes to do measurement and judgment. Its biggest characteristics are fast speed, saving a lot of manpower and high production quality. As the "eye" of industrial automation, it greatly affects the progress of the manufacturing industry. Under the background of the current industrial 4.0 era with high-end manufacturing as the core, the industrial automation industry market is showing a growing momentum. Among them, the machine vision, which plays the role of the "golden eye" of the factory, is indispensable.

First, let's understand what changes machine vision has brought to the factory in practical application. Applications such as target recognition, target tracking and multi ball machine tracking linkage technology in machine vision have brought changes to the security industry. If the camera is regarded as the human eye, the intelligent video analysis system can be understood as the human brain. The intelligent video analysis technology uses the powerful computing function of the processor to analyze the massive data in the video at high speed to obtain the information that people need. In addition to machine vision and image processing technology, a real-time video monitoring system is designed. The system not only realizes video monitoring, but also adds video change detection and automatic recording functions. The system can automatically recognize scene changes, detect moving targets and lock them, and issue warnings and activate storage devices. This not only saves storage space, improves monitoring storage efficiency, reduces unnecessary playback, but also makes the data more targeted.

In addition, the use of machine vision technology for industrial defect detection has the advantages of non-contact, high efficiency, low cost and high automation. It is gradually replacing the traditional defect detection methods. This kind of detection and measurement is non manual operation, which can save a lot of human resources and bring considerable benefits to the company. Therefore, it is more and more widely used.

Next, let's talk about some typical applications in the manufacturing industry.

Application of object measurement

The biggest characteristic of machine vision industrial application is its non-contact measurement technology, which also has high accuracy and high speed performance, but it is non-contact and no wear, eliminating the potential secondary damage caused by contact measurement. Common measurement applications include gears, connectors, auto parts, IC component pins, fried dough twist drills, thread detection, etc.

Application of image detection

Detection is one of the most important applications in machine vision industry. Almost all products need to be inspected, while manual inspection has many disadvantages. Therefore, machine vision with many advantages is also widely used in image inspection. For example, in the fifth set of RMB newly issued in October 2000, the side of one yuan coin has enhanced the anti-counterfeiting function. In view of the strict control requirements of the production process, a visual inspection system is installed in the last process of coin making.

Application of image recognition

Image recognition is to use machine vision to process, analyze and understand images to identify targets and objects in different modes. The most typical application of image recognition in the field of machine vision industry is the recognition of two-dimensional codes. A large amount of data information is stored in the two-dimensional code, and the product is tracked and managed by the bar code. Through the machine vision system, the bar code on the surface of various materials can be easily identified and read, which greatly improves the efficiency of modern production.

Object sorting application

In fact, the object sorting application is a link established after recognition and detection. The image is processed by the machine vision system to realize sorting. In machine vision industrial applications, it is often used for food sorting, automatic sorting of parts surface defects, cotton fiber sorting, etc.

Visual psitioning application

Visual positioning requires that the machine vision system can quickly and accurately find the tested parts and confirm their positions. In the field of semiconductor packaging, the equipment needs to adjust the pickup head according to the chip position information obtained by machine vision, accurately pick up the chip and bind it. This is the most basic application of visual positioning in the field of machine vision industry.

Advantages of machine vision over manual inspection in manufacturing industry:

1. Low cost, automatic detection saves a lot of labor costs.

2. Fast speed, which can be coordinated with the speed of the production line and synchronized with the detection speed of the assembly line.

3. The work is stable and can work stably for a long time, which cannot be achieved manually.

4. Greatly improve the detection efficiency The product detection rate can reach 99%, effectively ensuring the delivery of products.

5. Fast and accurate dimensional measurement to ensure that each product is qualified.

6. It can work in some dangerous environments that are not suitable for manual operation, such as radiation, toxic gas, high temperature and high pressure.

Compared with manual inspection, machine vision inspection has the characteristics of objectivity, non-contact and high accuracy. Especially in the field of industrial production, it has strong application value in repetitive and mechanical work. For manufacturers, product quality can be guaranteed, and enterprises can improve product competitiveness and achieve long-term development